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Conference SENATIK STT Adisutjipto Yogyakarta

senatik
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Published by Institut Teknologi Dirgantara Adisutjipto

ISSN : 23373881 EISSN : 25281666 DOI : 10.28989/senatik

Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

SENATIK merupakan jurnal proceeding seminar nasional teknologi informasi dan kedirgantaraan yang dikelola Pusat Penelitian,dan Pengabdian kepada Masyarakat (P3M) Sekolah Tinggi Teknologi Adisutjipto Yogyakarta. Jurnal ini diterbitkan dalam jangka waktu setahun sekali, dalam bentuk off line/ buku cetak dan on line dengan E-ISSN 2528-1666, digunakan untuk publikasi karya ilmiah, peneltian, tesis dan desertasi dari dosen dan calon dosen. Jurnal dari SENATIK ini juga terindeks ke crossref dengan nomor doi 10.28989 sehingga artikel yang dipublikasikan memiliki nilai yang lebih. Sebagai institusi yang memiliki ciri khas kedirgantaraan, maka setiap penerbitan dari proceeding ini akan disertai dengan seminar nasional yang temanya dalam lingkup Teknologi dan Kedirgantaraan. Mulai SENATIK 2018, proceeding akan dicetak menggunakan International Standard Book Number (ISBN)

Arjuna Subject : -

Articles 442 Documents

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Image Quantization in Psoriasis Using K-Mean Clustering Nugroho, Arief Kelik
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Along with technology that is very fast image processing with high quality can be presented and displayed in many ways. The image has detailed information that can cause problems during processing. Image quantization is done as a preprocessing stage to reduce the number of colors in the image so that the resulting image approaches the original image. The purpose of this study is to group clusters of characteristics with the same image value.

Oyster Mushroom’s Greenhouse Remote Monitoring System Based on Raspberry PI -, Martanto; Yustia, Elisabet
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

In the agricultural sector there are many mushroom farmers who do manual cultivation. Environmental factors that influence the growth of oyster mushrooms include temperature and humidity. This system was made to maintain the stability of temperature and humidity in oyster mushrooms’ greenhouse remotely. Communication of remote data exchange between Raspberry-Pi and Zelio using TCP/IP networks was successfully carried out. The system managed to run the features in the setting menu which is able to set the temperature and humidity set point values, set the on/off condition of the actuators, display the local system set point and set the on/off condition of the enable button in the GUI. Temperature and humidity values, and actuator status can displayed in monitoring menu. In the logging menu, the data was saved in csv format. Automatic file naming based on date was successfully done, the csv file was successfully opened and displayed in graphical plot.

The Effect of Peak Signal to Noise Ratio (PSNR) Values on Object Detection Accuracy in Viola Jones Method Sajati, Haruno
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Image quality is an important parameter in object detection. Image with good quality will produce high accuracy in the object detection process. Image quality is measured using the peak signal comparison of the original image with the interference that occurs in the image. This comparison is formulated with the Peak Signal To Noise Ratio (PSNR). PSNR values obtained from variations in image quality improvements will be seen in its characteristics in object detection methods using the Viola Jones method. The higher PSNR value will definitely produce better accuracy, but improving the image to the best quality will drain resources and a high computational burden so it needs to find a minimum PSNR value that can still be considered good in the object detection process. The minimum PSNR value for the image is said to be feasible to be processed 19.05 dB. The minimum PSNR value before the object can no longer be detected is 12.43 dB.

The Distribution of Aircraft Passenger Movements on Java Island Using the Gravity Model Gunawan, Gunawan
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

The need for movement always causes problems, especially when humans go to the same destination in a certain area at the same time. It is needed to do the analysis of the distribution of aircraft passenger movement in order to provide the required facilities in the future. This research model the distribution of aircraft passenger movements on Java Island using the Double Constrain Gravity model(DGCR) with the negative exponential, rank and tanner obstacle function. In this case, it is found that the Double Constrain Gravity Model (DGCR) with tanner obstacle function is the best method due to the smallest standard deviation. It could be concluded that the DCGR model with tanner obstacle functions is more accurate when compared to the DCGR model with other obstacle functions in estimating the movement distribution in 2025 on Java Island.

Decision Support System to Determine the Number of Production Tofu using the Fuzzy Sugeno Method (Case Study: Home Industries Tofu in Seyegan District) Indrianingsih, Yuliani
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

The production process is a way to increase the usefulness of an item and service using existing production factors. The decision making process to determine the amount of production, especially in the business world contains risks. It needs to be supported by careful calculations so that the risk of loss can be avoided. Industri associations tofu "Waluyo" in Seyegan who still determines the amount of production manually. From the above problems a Decision Support System (DSS) was made using Sugeno's fuzzy method. In this DSS there are three variables modeled, namely, inventory variables, demand variables and production variables. The demand variable consists of two fuzzy sets, the inventory variable consists of two fuzzy sets and 4 rules which are the production rules used by Industry associations tofu "Waluyo" in determining the amount of production. Based on the acuracy test using the MAPE (Mean Absolute Percentage Error) method obtained a value of 5,3069% or below the error rate of 10%. So this system can be applied in determining the amount of tofu production in the tofu industri community in Seyegan.

Monitoring Departure to Schools in Basic School Students Using Arduino Based on Android Saputro, Eko; Kusumaningrum, Anggraini; Irawaty, Mardiana
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Student departure monitoring is an Android-based app used to monitor student departure to school. This system runs on parent smartphones so parents can see the existence of students and the app will give a message if the student out of the route path that has been set. Arduino used is arduino uno nano type. Arduino programmed using C language, to monitor the existence of students also required some components such as GSM Module and GPS Module. In testing the user application can monitor the existence of the students through the mobile phone that has been installed the application, before monitoring the departure of parents students are required to enter data coordinates home, coordinate data route and data coordinates of schools entered manually. To get the coordinate data the parent can take it through google Maps. To avoid failure in the use of remote control applications should use Android smartphone version 4.1 Jelly bean to version 6.0 Marshmallow. In the experiments this application can run smoothly with the Android version 4.1 to Android version 6.0 and the results of the questionnaire given to the 30 respondents with 9 questions 75.77% results obtained using Likert-scale calculations, which results obtained a good assessment interval.

The Visualization Study on the Slug Flow Mechanisms of the Air-Water Two-Phase in a 50 mm Horizontal Pipe Dinaryanto, Okto; Hudaya, Akhmad Zidni; Deendarlianto, Deendarlianto; Indarto, Indarto
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

The slug flow phenomena are often encountered in various industrial applications such as petroleum, process, and power plant. The presence of slug flow should be avoided as it causes structural damage due to resonance, corrosion and pipes blast. From the view point of multiphase flow, the understanding of the slug initiation mechanism is very important in pipeline design. This research is conducted using horizontal transparent acrylic pipes with diameters of 50 mm with a variation on the superficial velocity of water between 0,1 m/s and 0,77 m/s and superficial velocity of air between 0,31 m/s and 6,2 m/s. In the present experimental study, the slug initiation mechanisms was explained by visual observation by using high speed video cameras. As the results, the slug flow initiation mechanism were clarified. Furthermore, the proposed of flow initiation map was introduced.

Investigating the Effect of Water Velocity on Savonius Water Rotor Abadi, Reza Perdana; Wihadi, Dwiseno
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Energy can be obtained from the flow of water in irrigation channels. Savonius water rotor can be applied to low velocity flow and does not cause substantial losses. Rotor Savonius, which has good initial spinning ability, will assist in its operations. The experimental study conducted in this paper aims to investigate the effect of water velocity on the performance of the model of Savonius water rotor. The experiments used 2 blades Savonius rotor to show tip speed ratio, torque and power coefficient related with water velocity. The results of study showed that, increased velocity of water flow increases the ability of Savonius water rotor. The Savonius rotor can produce a high power coefficient at low water flow rates when a deflector is added

Analysis Numerical Discontinuity of Thin Walled Tube Subjected Low Velocity Impact Rabeta, Bismil; Sitompul, Sahril Afandi
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Accident of some countries that have high gross domestic product (GDP) significantly increasing[1]. This event cause fatal for passengers especially if there an accident on the front vehicle[3]. Therefore, the main aspects of car design are very important, one of them is crash box. Crash boxes are designed to absorb impact energy due to collisions through progressive buckling. In the crushing box design, the tube can be given continuity in the form of a circular hole that has been carried out by previous researchers which provides a deceleration at the safety level on passenger body. In this study a numerical analysis conducted using tube with ellipse discontinuity by varying the ratio of ellipse hole in the crushing box to D/b ratio 0.0, 0.2, 0.3, 0.5. The results of this study found that the tube with D/b 0.0 has the highest peak force than the other ratio.

Effects of Grains Size and Sandblasting Duration to the Surface Hardness of the Casting Product of Used Propeller Ahmadi, Nurfi
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

This research carried out the sandblasting process on used aluminum propeller castings with variations in sand grains: 40 mesh, 60 mesh, and 80 mesh with variations of 30 seconds, 60 seconds and 90 seconds. The size of the grain and the varying time result in different surface hardness. The biggest hardness on sandblasting with a grain size of 40 mesh time of 90 seconds is 39.8 VHN, 60 mesh time of 30 seconds is 38.6 VHN, 80 mesh time of 30 seconds is 37.1 VHN, from the photo macro the abrasion of the largest surface material occurs at grain size 40 mesh.

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Hero Wintolo

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Home Page

OAI Link

Editorial Team

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Contact Name Hero Wintolo

Contact Email herowintolo@stta.ac.id

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Location Kab. bantul, Daerah istimewa yogyakarta INDONESIA

Abstract

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Contact Name
Hero Wintolo

Contact Email
herowintolo@stta.ac.id

Phone
-

Journal Mail Official
senatik@stta.ac.id

Editorial Address
-

Location
Kab. bantul,

Daerah istimewa yogyakarta

INDONESIA